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发明名称
摘要
申请公布号
FR2143199(B1)
申请公布日期
1973.07.13
申请号
FR19720022373
申请日期
1972.06.21
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
分类号
G06K7/10;G06K13/08;(IPC1-7):G06K7/00
主分类号
G06K7/10
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